diff --git a/packages/claude-code-plugin/hooks/session-start.py b/packages/claude-code-plugin/hooks/session-start.py
index 81f1b9e3..bd7445fd 100644
--- a/packages/claude-code-plugin/hooks/session-start.py
+++ b/packages/claude-code-plugin/hooks/session-start.py
@@ -30,7 +30,7 @@
 # Constants
 HOOK_FILENAME = "codingbuddy-mode-detect.py"
 SOURCE_FILENAME = "user-prompt-submit.py"
-HOOK_COMMAND = f"python3 ~/.claude/hooks/{HOOK_FILENAME}"
+HOOK_COMMAND = f'python3 "$HOME/.claude/hooks/{HOOK_FILENAME}"'
 
 # i18n Messages
 MESSAGES: Dict[str, Dict[str, str]] = {
@@ -271,7 +271,7 @@ def _is_hook_in_settings(settings: dict) -> bool:
     user_prompt_hooks = settings.get("hooks", {}).get("UserPromptSubmit", [])
     for hook_group in user_prompt_hooks:
         for hook in hook_group.get("hooks", []):
-            if hook.get("command") == HOOK_COMMAND:
+            if HOOK_FILENAME in hook.get("command", ""):
                 return True
     return False